Now this is space travel the way it should have been - jaunty harmonies, spiffy tuxes, and, I'm quite sure, just off camera, a cocktail table groaning under the weight of martinis. Yes, they do sing "Moonglow," and however much the title tune sounds like the name of an educational filmstrip, it's actually pretty cool.
Space-Age Bachelor Music fun fact: I actually worked with Sid Ramin, once upon a time. Great guy. Had I known he'd been to the moon - or met the Ames Brothers - we might have had more to talk about.